Jan Bosak

CZE · 65 yrs · K=20 · Peak 2233 (Jul 2003)

Best performance: 2192 at Zlínský krajský přebor 2025/2026(Best of 2026)

World #=21544 live79#21,465 publishedCzechia #=763

OCT26 Rating

2045

Live Rating

2045.0

Change

0.0

Games Played

Rating History · Classical

Loading chart…

Classical games since the October list

No rated standard games this rating periodsince the OCT26 list (Oct 1, 2026)

	Last played	Score	TPR
	Valasska Bystrice 2026Sep 5 – Sep 12TPR 2131	6½/9	2131

The live rating moves only when new rated games are played. Until then it matches the published rating.

Event timeline · Classical

40 events

Events before the current rating period show the performance, not a rating change.

Live events show the rating change; earlier events show the performance rating.

Valasska Bystrice 20262131
Sep 2026Swisschess-results.com
#2 in 2026Score 6½/9Opp avg 1965Start 2017
OPEN Stare Mesto 20261927
Aug 2026Swisschess-results.com
#7 in 2026Score 6/10Opp avg 1855Start 2041
CZECH OPEN 2026 - E - RAWACO RECYCLING open – in memory of Tomáš Vágner 4-member team tournament1846
Jul 2026Teamchess-results.com
#8 in 2026Score 3/5Opp avg 1774Start 2062
TEPLICE OPEN 20262011
Jun 2026Swisschess-results.com
#6 in 2026Score 3½/9Opp avg 2054Start 2078
Zlínský krajský přebor 2025/20262192
Oct 2025 – Apr 2026Teamchess-results.com
Best of 2026Score 6½/8Opp avg 1941Start 2046
Memoriál Vratislava Hory 2026 | Open A2122
Apr 2026Swisslichess
#3 in 2026Score 3/5Opp avg 2050Start 2069
2.liga E 25/26 (Veseli-MS Brno C)2104
Oct 2025 – Mar 2026Teamfederation source
#4 in 2026Score 4½/6Opp avg 1911Start 2046
MARIENBAD OPEN 2026 D - seniors tournament 50 plus2066
Jan 2026Swissfederation source
#5 in 2026Score 5½/8Opp avg 1925Start 2036
BRNO OPEN 2025 B - FIDE open1944
Nov 2025Swissfederation source
#5 in 2025Score 5½/9Opp avg 1864Start 2042
Valasska Bystrice Open 20252013
Sep 2025Swissfederation source
#4 in 2025Score 6/9Opp avg 1888Start 2055
Open Stare Mesto 20252027
Aug 2025Swissfederation source
#3 in 2025Score 6/10Opp avg 1955Start 2061
O pohar starosty obce Dalovice 20252157
May 2025Swissfederation source
Best of 2025Score 6/8Opp avg 1964Start 2035
Memorial Vratislava Hory 2025 - open A2076
Apr 2025Swissfederation source
#2 in 2025Score 4½/7Opp avg 1974Start 2022
2. liga F 2024-2025 r10—(1)
Oct 2024 – Mar 2025Teamfederation source
Score 1/1Opp avg 2000Start 2024
SSZK - Krajsky prebor 2024-2025 r7-8—(1)
Oct 2024 – Feb 2025Teamfederation source
Score ½/1Opp avg 2176Start 2024
SSZK - Krajsky prebor 2024-2025 r5-6—(2)
Oct 2024 – Jan 2025Teamfederation source
Score 1/2Opp avg 2060Start 2024
2. liga F 2024-2025 r4-5—(2)
Oct – Dec 2024Teamfederation source
Score 1½/2Opp avg 1950Start 2024
2. liga F 2024-2025 r6-7—(1)
Dec 2024Teamfederation source
Score 1/1Opp avg 1915Start 1983
SSZK - Krajsky prebor 2024-2025 r9-10—(2)
Dec 2024Teamfederation source
Score 1½/2Opp avg 2055Start 1983
SSZK - Krajsky prebor 2024-2025 r4—(1)
Oct – Dec 2024Teamfederation source
Score 0/1Opp avg 2038Start 2024
SSZK - Krajsky prebor 2024-2025 r2-3—(1)
Oct – Nov 2024Teamfederation source
Score ½/1Opp avg 1885Start 2024
SSZK - Krajsky prebor 2024-2025 r1—(1)
Oct 2024Teamfederation source
Score ½/1Opp avg 1894Start 2024
2. liga F 2024-2025 r1—(1)
Oct 2024Teamfederation source
Score 0/1Opp avg 1891Start 2024
Tatransky pohar 20241903
Oct 2024Swissfederation source
#4 in 2024Score 4/7Opp avg 1853Start 2024
Valasska Bystrice Open 20242018
Aug – Sep 2024Swissfederation source
Best of 2024Score 6/9Opp avg 1893Start 2031

Rated near Jan Bosak · Classical

World

#=21544Joaquim Font Alvelo2045.0
#=21544Miroslav Kalous2045.0
#=21544Jan Bosak2045.0
#=21544Stanislav Trejbal2045.0
#=21544Jiri Cernovsky2045.0

Czechia

#=763Petr Herejk2045.0
#=763Miroslav Kalous2045.0
#=763Jan Bosak2045.0
#=763Stanislav Trejbal2045.0
#=763Jiri Cernovsky2045.0

Live ratings projected from the OCT26 published list · Not affiliated with FIDE